100120003201121 has 4 divisors (see below), whose sum is σ = 100342987618500. Its totient is φ = 99897018783744.

The previous prime is 100120003201111. The next prime is 100120003201199. The reversal of 100120003201121 is 121102300021001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32122415216896 + 67997587984225 = 5667664^2 + 8246065^2 .

It is a cyclic number.

It is not a de Polignac number, because 100120003201121 - 2²⁶ = 100119936092257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100120003201096 and 100120003201105.

It is not an unprimeable number, because it can be changed into a prime (100120003201111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111492208016 + ... + 111492208913.

It is an arithmetic number, because the mean of its divisors is an integer number (25085746904625).

Almost surely, 2^{100120003201121} is an apocalyptic number.

It is an amenable number.

100120003201121 is a deficient number, since it is larger than the sum of its proper divisors (222984417379).

100120003201121 is an equidigital number, since it uses as much as digits as its factorization.

100120003201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222984417378.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 100120003201121 its reverse (121102300021001), we get a palindrome (221222303222122).

The spelling of 100120003201121 in words is "one hundred trillion, one hundred twenty billion, three million, two hundred one thousand, one hundred twenty-one".